Franklin Mint : The World's Greatest Performance Cars. A collection of 100 miniature .925 sterling silver bars w. 24k gold plating - Original Large Presentation box, 8.7 oz. sterling silver. Issued in May of 1983, this Franklin Mint limited edition Proof Set is a single edition limited to a maximum of 25,000 sets world-wide. This collection consists of 100 miniatures minted in a full proof finish by the Franklin Mint in 24k gold el electroplate on solid sterling silver. The ingots are still sealed on the original cards. There are 53 cards so there are a few extras. Each mini ingot features a front and side view of one of the great performance cars. The reverse side contains its name and significance to the auto industry. The original display box, tool box with a magnifying glass and tongs for handling the ingots, and description cards for each card. Some receipts from 1984 to 1987 are also included.